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Why does the surface of rolled pipe have higher smoothness?
The higher surface smoothness of rolled pipes is mainly due to the process characteristics and advantages of rolling processing:
1. Principle of rolling processing:Rolled tubeIt gradually forms a tube shape by rolling and extruding the metal blank multiple times. During the rolling process, the metal blank is pressed and plastically deformed under the action of the roller or drum, forming a smooth tube wall. Compared with other processing methods, the contact area of ??the metal surface during the rolling process is larger and the processing force is uniform, so a smoother surface can be obtained.
2. Optimized roller design: It uses specially designed rollers or drums for processing. These rollers typically have precision geometries and surface treatments to ensure the smoothest possible contact surface with the metal blank. The finish and precision of the rollers are important to produce a highly smooth tube wall.
3. Multi-pass rolling processing: Its manufacturing usually uses a multi-pass rolling processing process, that is, the metal blank undergoes a continuous rolling process. Each pass of rolling can further improve the surface smoothness of the pipe wall and gradually reduce the surface roughness and unevenness.
4. Surface treatment and cleaning: After the rolling pipe is processed, surface treatment and cleaning processes are often performed to further improve the surface smoothness. This may include steps such as removing residual grease, cleaning and polishing to ensure the surface is free of impurities and defects.